C 1500 Truck 2WD V6-262 4.3L VIN Z (1992)
Side Marker Lamp: Testing and Inspection
Roof
Preliminary Checks
1.
If one side of front marker lamps is operating, check condition of bulb(s) that are not operating. If bulb(s) are good, LOCATE and REPAIR open in
BRN (9) wire and BLK (150) wire.
2.
If none of marker lamps operate, use the diagnostic procedures.
3.
If at least one roof marker lamp is operating, check condition of bulb(s) that do not operate. If bulb(s) are good, LOCATE and REPAIR open in
WHT (45) wire and BLK (150) wire.
4.
If none of the roof marker lamps operate, use diagnostic procedures.
Roof Marker Lamps Do Not Operate
